Sander



F. J. MASON Nov. 8, 1949 SANDER 5 Sheets-Sheet 1 Filed May 27, .1946

Inventor Fso J1 MFISDN 1949 F. J. MASON 2,487

SANDER Filed May 27, 1946 5 Sheets-Sheet 2 1- ED J. MHSDN WWW E F. J. MASON Nov.- 8, 1949 SANDER Filed May 27, 1946 0 5 a 5 2 w J 9 l 4 W/ 3 ll 0 1 A f w MM u 3 6 323 a 7 6 a 7 z 4 Z 2 Intel/[0r Fizz: J. MHSDN F. J. MASON Nov. 8, 1949 SANDER 5 SheetS Sheet 4 Filed May 2'7, 1946 lureu/or F El: J. MnsuN NOV. 8, 1949 m. MASON 2 8 I sANbER Filed May 27, 1946 5 Sheets-Sheet 5 Inventor J. Mnsnm Patented Nov. 8, 1949 UNITED STATES PATENT OFFICE SA R.

Fred J. Mason, Syracuse, N. Y. onni sat th May 27, 6. er N 61 613 9 Claims. (01. 2 9I19) This invention relates to a sander, and more p a y o a an dis r bu or or. hicl s- An object of the invention is to improve the t ti n of the wh ls f. a ehic n s or shtipery roads.

no r ohist to pre r e. h de i in re d.- h s r ih hh hseus operat on du i per d or sub-freezing weather;- as well as periods, of arms hsr.

A further object is to deposit sand or like granlar ma e al .1. a r ad mm d at y in dvance of the traction or braking wheels of a hicle h shove-ant ther b c m b t ai ed b m lo i th s nvent on which o ie a ong it eatures s h r se o arri d b he h e, a sand dis har e n zz ri d b the eh e in l ants of se t g oun 9 hs. he ls! a soh sy h t hs i 7 delive an om h eservo r a sas dis h rge nozzle, an m an in a h nve r tub t htiihgi t e ser o r i shite. he the s nd n. he r etvsir an effectin os tive d i o the and from th res rv r t th dis har nozz es.

th r eature ihs i heating mea r sash ch r e n tt e and. means cherish-1e n un s n h the o enin of h dis-cha e valve for setti th a itators motion to de iv saht t t i cha h zt est 1 the drawings.

igur is. a side iew hi t pa sen ereh le e pp d with my mpro ed ssht eh es. in P91?- ions o h eh le los roken away 0 mo l a i l st ate erta n detai s Qt QQI StWQt Qi? F u e 2 s ansvers s t ichel iew throu h Figure 1 Fi u e 3 is a irasmsh sren a ged. iona e h ou h s n res oir and sa d. 99* veyor tube, showing its relationship with one ex.- ample o a deh etv ozzle Figure 4 is a sectional view taken substantially along the line 4:41 of Figure 3,

Figure 5 is fra menta e t o a i o a delivery nozzle of modified form,

Figure 6 is a fragmentary View partially in section o the ot a d r bu ng s em by which the nozzle illustrated in Figure 5 is sup.- plied with heating fluid,

Figure '7 is a transverse sectional view taken u s anti y along the line "'4 o Fi u e 6,

Fi u 8 is a a rammatic. ew of th method of up l i oduc s o omhus ioh f m. n nterhsl ombus on e ine to he heat r i lustrated in Figure 5,

Fi u 9 s a i aem httt y sec ona i w llustratihg a e ctr al hea ed n zle Fi u 1 s a d agrammat c view llu tra n h applicat on of my devise to a veh cle equihh d th a con n ional air pressure supp s stem,

Fi re a enlar ed side vi im control val e. t ti psdvith a. o ol s i arranged tor oihtid hts o er i n wi h h valve R rrin to. t e r win n de ai t ro shicle designated. generally l5 which in the presnt 1 .1%? 't i p @KQS t term of i passenger h is equip e wi h tqhvehtioh od it pported on front steering wheels H and rear traction wheels to, The vehicl I5 is equipped with the tohvsh i hs s eerin Wheel '9 sh ine my control valve '40, and a power source in the pre 'e r mbodiment tak h t m o s v nti n l wa e co le i nal q m ti t q h My improved sanding device is designated generally 2 2 and in its preferred form comprises a res- Q 'r t ha ihs. an inc ined bo om wa 2. r v e hea one end, w th d ha e s e t which a conveyor tuhe Z5 is connected so that the contents of the reservoir may be discharged therefrom with the aid of gravity. The reservoir is prefe a sit te i h the d It of the bus at any convenient point as for instance, under a seat as suggested in Figures 1 and 2, and its top side is closed by a suitable removable cover 26 by means of which sand. may he introduced into the reservoir. In its preferred form, there are two reservoirs 23, one on each side of the vehicle in advance of the traction wheels [8 and the conveyor tuhes lead downwardly therefrom to my improved sand distributing nozzle designated generally 21.

Each sand distributing nozzle comprises a tuhular body 28 having a port 29 in its side which communicates with its respective conveyor tube 25, and slidably mounted within the housing 30 adjacent the port 29 is a vertically movable door 3| of arcuate' configuration which when moved to its lowermost position closes the port 29 to prevent the discharge of sand from the conveyor u e 2 i t th hot-h e, uil nt the upper end of the cylindrical body 28 is an air cylinder 32 in w ich a pist h .3 i o era le This to i provided with a piston rod 35 which projects r h a u ab e hacked O e n 3 in h oto Wi t e ii l i t d s schhett o an am t e tieat th lowe end of the doo 3! o that a the p s 3.3 move w thin th i e 32 he do the be o e to then r cl sed o ion Th up er and ow r ends o he cylinder 62 a e, r vide w th tor s and 8 esp t vely hi h he c nne to s itl 501117-08 of hi P 7555 u p ri d b the eh le th o h a on ro te o h mq e hllv hereinafter described.

S u ed t the 0W? .2 oi h W RQl QQ hotl 2s an commun catin w th th inte o ther o re sand oist ihtt hs ozz s 38 thr h hich the end flo qq hward rom the re r oi it is di t but ad acen s r e tive tract on h e As iilu tre sti in F u s 2 nd 4 there are two nozzles 39 to each discharge nozzle 28 in order to deposit the sand in front of the traction wheels of a vehicle equipped with dual tires. It is to be understood however, that where only a single tire is mounted on each wheel, only one nozzle 39 need be employed. The nozzles 39 are surrounded by a suitable water jacket 40 provided with inlet and outlet ports 4| and 42 respectively which are connected through the medium of insulating pipes 43 and 44 respectively, with the cooling system of the engine 2|. A suitable pump 45 may be interposed in the return line 44 in order to aid in the circulation of heated cooling fiuid through the Water jacket 49.

In order to maintain the sand contained within the reservoir 23 in a loose and flowable condition, and also positively to deliver the sand from the reservoir to the nozzle 21 I provide a conveyor screw 46, one end of which is journalled in a suitable bearing 4! carried within the reservoir 23, while the opposite end is journalled in asuitable bearing 48 carried near the extreme lower end of the tube 25. A bevel pinion 49 is mounted in driving relation axially of the conveyor screw 46 and meshes with a bevel drive pinion 50 carried adjacent one end of a stub shaft 5l WhiCh is mounted to rotate about a horizontal axis through the conveyor tube 25 adjacent its lower end. Mounted in any suitable position on the underside of the vehicle body I6 between opposite discharge nozzles 21 is an electric drive motor 53, opposite ends of the drive shaft of which are connected by means of flexible shafts 54 with the stub shafts 5|, so that when the motor 53 is driven, the spiral conveyors 46 will be driven in unison. It will thus be seen that the portion of the spiral conveyor 46 which extends into the reservoir 23 will serve as an agitator to maintain the sand contained therein in a loose and fiowable condition, while that portion of the agitator or conveyor 46 extending through the conveyor tube 25 will serve tofeed the sand from the reservoir 23 into the discharge nozzle 21.

In the modification illustrated in Figures 5, 6, '7 and 8, each distributing nozzle 39 instead of being surrounded by a water jacket 40 is enclosed in a circumferential casing 55 having a port 56 which is connected by means of a suitable tubular connection 51 with a hollow cylindrical casing 58. The casing 58 is provided with an end inlet which is connected through the medium of a pipe 59 with the muflier 60 (Fig. 8) through which the products of combustion emitted by the fengine 2| are normally discharged. Instead of being discharged directly to atmosphere as in the ordinary manner, the products of combustion are directed into the chamber 58 and thence through valve ports 6| into the pipes 51 from whence they are directed through the jackets 55 to atmosphere around the nozzles 39. The valve ports 6| are equipped with butterfly valves 62 which operate in unison by means of a common shaft to which a lever 63 is fixed. This lever is connected by a suitable flexible cable 64 to any .suitable control device located in the vicinity of the steering wheel l9 so as to be readily controlled by the driver of the vehicle. Mounted on the end of the shaft opposite the lever 63 is a lever arm 65 to which a retractile coil spring is connected, the opposite end of which is con- .nected to a fixed bracket 66 so that the butterfly valves 62 are normally held in a closed position. In order to provide for the escape of the prodnets of combustion from the interior of the chamber 58 I provide an enlarged port 61 adjacent the ports 6|, and connected to the port 61 is an exhaust discharge pipe 68.

As a further modification of the heating means for the nozzles 39 I find it in some instances, desirable to surround the nozzles with electric heating coils 69 which are housed within 2. casing 10 enclosing the nozzles, and connected as by leads H to any suitable source of electrical power supply.

In order to control the operation of the motor in unison with the opening and closing of the gates 3|, I employ an improved control valve and switch designated generally 12 (Fig. 11). This valve is provided with a port which is connected through the medium of a pipe 13 to any suitable source of fluid pressure supply, such as the fluid pressure reservoir of a conventional air brake system employed on motor vehicles. The valve 12 is also equipped with ports 14 and 15 which are connected through the medium of pipes 16 and 1'! respectively, to the ports 31 and 38 of the cylinders 32, Operating in unison with the valve 12 is an electrical switch 18, one terminal of which is connected to a suitable source of electrical power 19 while the opposite terminal is connected through a lead with one terminal of the motor 53. The opposite terminal of the power source is connected through a lead 8| to the opposite terminal of the motor 53 and it will thus be seen that when the valve 12 is manipulated so that air is admitted to the cylinders 32 to elevate the pistons 33 and open the doors 3|, the motor 53 will be energized to drive the spiral conveyors 46. Connected in the circuit, and operable by the manipulation of the switch 18 is a signal lamp 82 which is energized when the motor 53 is energized in order to give a visual signal to the operator of the vehicle that the sanding equipment is in operation.

Obviously as the doors 3| are elevated, and the motor 53 is set into operation, sand will be delivered from the reservoir 23 through the conveyor tube 25 and into the discharge nozzle 21 to be distributed through the distributing nozzles 39 immediately in front of the traction wheels of the vehicle upon which the device is used. In this way, the vehicle operator may have under his direct control a means for improving the traction of the vehicle either when applying the brake, or when applying power. It is evident that such a device will not only materially aid in maintaining transportation schedules, but will also avoid skidding of the vehicle with the consequent danger of accident.

While in the foregoing there has been shown and described the preferred embodiment of this invention it is to be understood that minor changes in the details of construction, combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

I claim as my invention:

1. A sander for a trackless vehicle which includes, a sand reservoir carried by the vehicle, a sand discharge nozzle carried by the vehicle in advance of selected ground contacting wheels, a conveyor tube for delivering sand from the reservoir to each discharge nozzle, means extending through each conveyor tube and into the res ervoir for agitating the sand in the reservoir and effecting positive delivery of the sand from the reservoir to the discharge nozzles, a closure plate between said conveyor tube and discharge nozzle,

and fluid pressure actuated means connected to a source of fluid pressure carried by said vehicle to operate said closure plate and control the delivery of sand.

2. A sander for a trackless vehicle which includes, a sand reservoir carried by the vehicle, a sand discharge nozzle carried by the vehicle in advance of selected ground contacting wheels, an upwardly inclined sand conveyor tube extending between the reservoir and the discharge nozzle, means extending through each conveyor tube and into the reservoir for agitating the sand in the reservoir and effecting positive delivery of the sand from the reservoir to the discharge nozzles,

a closure plate between said conveyor tube and discharge nozzle, and fluid pressure actuated means connected to a source of fluid pressure carried by said vehicle to operate said closure plate and control the delivery of sand, and heating means for each discharge nozzle below the level of the reservoir whereby heat generated by the heating means will be conducted through the conveyor tube to the reservoir.

3. A sander for a trackless vehicle which includes, a sand reservoir carried by the vehicle, a sand discharge nozzle carried by the vehicle in advance of selected ground contacting wheels, an upwardly inclined sand conveyor tube extending from the reservoir to discharge nozzle, and means extending through each conveyor tube and into the reservoir for agitating the sand in the reservoir and eflecting positive delivery of the sand from the reservoir to the discharge nozzle, a closure plate between said conveyor tube and discharge nozzle, and fluid pressure actuated means connected to a source of fluid pressure carried by said vehicle to operate said closure plate and control the delivery of sand, and means surrounding each discharge nozzle to preserve the fluidity of any moisture in the discharge nozzle and in the conveyor tube.

4. A sander for a trackless internal combustion engine driven vehicle which includes a sand reservoir carried by the vehicle, a sand discharge nozzle carried by the vehicle in advance of each traction wheel thereof, a conveyor tube extending between the reservoir and the sand discharge nozzles, and a conveyor screw extending through each conveyor tube and into the reservoir for agitating the sand in the reservoir and effecting positive delivery of sand from the reservoir to the discharge nozzles, a closure plate between said conveyor tube and discharge nozzle, and fluid pressure actuated means connected to a source of fluid pressure carried by said vehicle to operate said closure plate and control the delivery of sand, a heating jacket surrounding each discharge nozzle and means for directing a heating fluid from the engine through each jacket to preserve the fluidity of any moisture in the nozzles.

5. A sander for a trackless vehicle which includes, a sand reservoir carried by the vehicle, a sand discharge nozzle carried by the vehicle in advance of selected ground contacting wheels, a conveyor tube for delivering sand from the reservoir to each discharge nozzle, means extending through each conveyor tube and into the reservoir for agitating the sand in the reservoir and effecting positive delivery of the sand from the reservoir to the discharge nozzles, a closure plate between said conveyor tube and discharge nozzle, and fluid pressure actuated means connected to a 6 source of fluid pressure carried by said vehicle to operate said closure plate and control the delivery of sand, and common drive means for the sand agitating means.

6. A sander for a trackless vehicle which includes, a sand reservoir carried by the vehicle, a sand discharge nozzle carried by the vehicle in advance of selected ground contacting wheels, a conveyor tube for delivering sand from the reservoir to each discharge nozzle, means extend ing through each conveyor tube and into the reservoir for agitating the sand in the reservoir and effecting positive delivery of the sand from the reservoir to the discharge nozzles, a closure plate between said conveyor tube and discharge nozzle, and fluid pressure actuated means connected to a source of fluid pressure carried by said vehicle to operate said closure plate and control the delivery of sand, heating means for each discharge nozzle, and common drive means for the sand agitating means.

7. A sander for a trackless vehicle which includes, a sand reservoir carried by the vehicle, a sand discharge nozzle carried by the vehicle in advance of selected ground contacting wheels, a conveyor tube for delivering sand from the reservoir to each discharge nozzle, agitating means extending through each conveyor tube and into the reservoir for agitating the sand in the reservoir and effecting positive delivery of the sand from the reservoir to the discharge nozzles, a closure plate between said conveyor tube and discharge nozzle, and fluid pressure actuated means connected to a source of fluid pressure carried by said vehicle to operate said closure plate and control the delivery of sand, and valves operable in unison with the starting of the agitating means to permit the delivery of sand to the discharge nozzles.

8. The combination of claim 1, wherein simultaneous actuation of said fluid pressure means and said agitating means is controlled by an electric switch on said vehicle.

9. The combination of claim 1, wherein said plate includes an arm and a piston in said fluid pressure means connected to said arm to move said plate when said piston is actuated.

FRED J. MASON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 473,070 Hennegin Apr. 19, 1892 571,136 Oldfield Nov. 10, 1896 708,929 Simmons et al Sept. 9, 1902 795,472 Baker July 25, 1905 1,243,632 Roth et a1 Oct. 16, 1917 1,654,739 Kraus Jan. 3, 1928 1,789,600 Schopp Jan. 20, 1931 1,850,795 Hoffman Mar. 22, 1932 1,963,532 Sheldon June 19, 1934 2,033,322 Boyer et al. Mar. 10, 1936 2,265,882 Wilson Dec. 9, 1941 FOREIGN PATENTS Number Country Date 19,887 Great Britain Aug. 31, 1912 25,382 Great Britain Nov. 15, 1907 

